NXP Semiconductors MKL81Z128VMP7

Overview

MKL81Z128VMP7 from NXP (formerly Freescale) is a 72 MHz ARM® Cortex®-M0+ microcontroller with 128 KB flash, 96 KB SRAM, hardware cryptographic acceleration, EMV®-compliant ISO7816-3 SIM interfaces, and ultra-low-power operation down to 2.5 µA in sleep mode with RTC and SRAM retention - designed for secure, battery-constrained payment terminals including smartphone-attach readers and wearable payment devices.

For engineers reviewing the MKL81Z128VMP7 datasheet, MKL81Z128VMP7 pinout, MKL81Z128VMP7 application, or MKL81Z128VMP7 equivalent, key selection criteria include its 64-pin MAPBGA package (5×5 mm, 0.5 mm pitch), integrated FlexIO for peripheral emulation, crystal-less USB OTG controller, and support for EMV Level 1 software stack in secure embedded payment systems.

Technical Context

The MKL81Z128VMP7 implements a dual-clock domain architecture with independent high-speed (up to 72 MHz) and low-power (4 MHz IRC, 32 kHz IRC, 1 kHz LPO) clock sources, enabling autonomous peripheral operation in ultra-low-power modes without CPU intervention. Its power management controller supports six static power modes including Stop (272 nA) and VLPS with configurable memory/RTC retention.

Security is implemented via a dedicated low-power trusted crypto engine supporting AES128/256, SHA256, RSA, ECC, and DPA-resistant hardware acceleration, plus 128-bit unique chip ID and flash security lock. The device integrates two EMVSIM modules compliant with ISO/IEC 7816-3 for contact-based smart card interface in payment applications.

Key Specifications

Pinout & Package

Package: 64-pin MAPBGA, 5 mm × 5 mm, 0.5 mm pitch, 1.23 mm max height - optimized for space-constrained wearable and attachable payment hardware.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar secure microcontroller applications.

Compared with MKL81Z128VMP7, MKL82Z128VMP7 offers identical functionality with updated silicon revision and errata resolution, while KE17Z128VLH7 trades EMV-specific hardware for general-purpose DSP capability - making MKL81Z128VMP7 the only option certified for contact smart card payment applications requiring ISO7816-3 compliance.

Availability

MKL81Z128VMP7 is available at Aetrix Electronics and suitable for secure payment terminals, wearable financial devices, and industrial encrypted data loggers requiring stable component supply and long-term lifecycle support.

Supply support for MKL81Z128VMP7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in embedded security and microcontroller architecture.

The Kinetis KL8x series - including MKL81Z128VMP7 - was engineered specifically for ultra-low-power, EMV-certifiable payment applications demanding hardware-accelerated cryptography and contact smart card interface compliance.

FAQ

What is the maximum operating frequency of the MKL81Z128VMP7 core?

The MKL81Z128VMP7 features an ARM Cortex-M0+ core rated for up to 72 MHz operation under standard conditions, with optional high-speed run mode supporting up to 96 MHz. This frequency is achievable using the internal 48 MHz IRC oscillator with PLL multiplication or external crystal sources, and is validated across the full −40°C to +105°C temperature range specified for the MKL81Z128VMP7.

Does the MKL81Z128VMP7 support crystal-less USB operation?

Yes, the MKL81Z128VMP7 integrates a crystal-less USB 2.0 Full-Speed OTG controller with an internal oscillator meeting USB specification timing accuracy (±0.25%). This eliminates the need for an external 12 MHz crystal and associated load capacitors, reducing bill-of-materials cost and PCB footprint - a key advantage for compact MKL81Z128VMP7-based payment readers.

How many GPIO pins does the MKL81Z128VMP7 provide in its 64-pin MAPBGA package?

The MKL81Z128VMP7 in the 64-pin MAPBGA package provides 41 general-purpose I/O pins, each configurable with interrupt, DMA request, and multiple alternate functions including UART, SPI, I2C, and FlexIO. These GPIOs are distributed across PORTA and PORTB banks and support voltage-level translation between 1.71 V and 3.6 V logic domains as specified for the MKL81Z128VMP7.

Is the MKL81Z128VMP7 qualified for EMV Level 1 certification?

Yes, the MKL81Z128VMP7 is architected for EMV Level 1 compliance with dual ISO/IEC 7816-3 EMVSIM modules, hardware cryptographic acceleration (AES, SHA, RSA, ECC), and an NXP-provided EMV Level 1 software stack. While final certification is system-level and requires third-party lab validation, the MKL81Z128VMP7 provides all required silicon-level features and documentation to achieve EMV L1 certification in end products.

What low-power modes are supported by the MKL81Z128VMP7?

The MKL81Z128VMP7 supports six flexible low-power modes: Run (125 µA/MHz), Wait, Stop (272 nA with RAM/RTC retained), Very Low Power Stop (VLPS), Low Leakage Stop (LLS), and Very Low Leakage Stop (VLLS). Each mode offers configurable retention of SRAM, RTC, and selected peripherals - enabling MKL81Z128VMP7 designs to achieve sub-µA standby current while maintaining secure state and fast wake-up response.